Water-heater and regulator therefor.



C. C. HANSEN. WATER HEATER AND REGULATOR THEREFORI APPLICATION FILED MAYG. I9I5. LQQS. Patented Deo. 26,1916.

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WATER HEATER AND REGULATOR THEREFOR.

APPLICATION FlLED MAY. T915. LQQ. Patented Dec. 26,1916.

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CHARLES C. HANSEN, 0F NEW YORK, N. Y., ASSIG-NOR T0 THERMAL APPLIANCE COMPANY, INC., A CORPGBATION 0F NEW YORK.

WATER-HEATER. AND REGULATOR THEREFOR. f

' Specication of Letters Patent.

Patented Dec. 26, 1916.

Application led May 6, 1915. Serial No. 26,274.

ticularly of that character or type adapted to be interposed in a circulatory water heating system, and wherein means is provided for heating the water by live steam either from a boiler or. other suitable source, or with exhaust steam. p

My invention contemplates an improvedl y and simplied construction of the water heater, and also improved and simplified means for controlling the supply of steam to the heater, so as to regulate the temperature to which the water' is heated and for maintaining the water lt or about the desired temperature, the lnvention being an improvement upon the devices illustrated in patent to Madsen, No. 940,980 of November 23, 1909, and Kibby, No.1,018,711 of February 27, 1912. 1

rlihe invention consists in the improve.

'y ments to be more fully described hereinafter, and the novelty of which will be more particularly pointed out and distinctly claimed.

Y 1 fully and clearly illustrate my invention in the accompanying drawings, to be taken as a part of this specification, and wherein: Figure 1 is a plan view of one end of a preferred embodiment l of my .A invention. Fig. 2 is a plan View' ofthe opposite end of the heater from that shown in Fig. 1. Fig. 3 is a longitudinal section through the heater on the line 3 3 of Fig. 1. Fig. 4 is a longitudinal sectional view through the heater taken on the line 4-4 of Fig. 1, and

. at right angles to the section of Fig. 3. Fig.

5 is a detail view Vof a coupling or connecy tion employed with one of the water pipes.

Fig. 6 is a section on the line 6-6 of Fig. 5. Referring to the drawings by characters of reference, A, B, designate, respectively,

" end headers, the former beingl preferably used as the inlet and outlet header for botlr steam and water, as hereinafter described. The header 1S Substantially rectangular'in construction, consisting of an outer end wall 1, an inner end wall 2, and a rectangular surrounding side wall 3, thereby forming a rectangular chamber. The chamber of the header is divided by a transverse partition 4 into an outer water-receiving chamber and an inner steam chamber. These outer and inner chambers are each divided by two transverse partitions 7 8, into independent sets of chambers adapted to provide respectively for circulation of the water and steam,

as will be hereinafter set forth, there be-l ing a water inlet chamber 5, anintermediate water chamber 5a and a water outlet chamber 5", a steam inlet chamber 6, an intermediate chamber 6a and a steam outlet chamber 6b. rihe end wall 1 of the header A is preferably removable so as to permit access to the interior of the header, said wall being secured in position by. bolts 9 projected through said end wall through a flange 8a on the surrounding side wall 3 of the header, andl by bolts 9B threaded into said partitions 7 and 8. Steam enters the steam chamber 6 through an inlet 10, controlled by a valve 10, and leaves said outlet chamber 6b through the outlet 11. Water enters the water chamber 5 through the inlet 12 and, after circulating through the system, as will be hereinafter described, leaves the outlet chamber 5b through the outlet 13.

The header B consists of an inner end wall 14 and an outer end wall 15, together with a surrounding side wall 16, forming a substantially rectangular chamber within the header. 'lhe chamber within the header is divided by a transverse partition 17 into an inner 'chamber for steam and an outer chamber for water, said chambers being further divided by a partitlon 18 into separate water chambers 19, 19a, and steam chambers20, 20, said partition 18 extending at right angles to the partition 17. The end wall 15 is preferably removable, and 1s secured in place by bolts 21 engaging a flange 22 on the header, and by bolts 23 threaded into the partition 18. rlihe inner walls 2 and 14 of the respective headers are connected by`a plurality of steam pipes or conduits 2t, the ends of which are expanded portion of the headerA with the two/steam:-

, and securing them in place 1n openings in chambers 20, 20a, at the inner portion of the header B, as will be described. 1n the embodiment shown there are preferably eight of these steam pipes arranged in four pairs,l

and the arrangement is such that steam entering the chamber 6 through the inlet 10, will flow through two of the pipes 24 into the chamber 20, thence out of the chamber 20 through another pair of steam pipes into the intermediate steam chamber 6a in the header A, whence the steam flows out through a pair of said pipes 24 into the chamber 20a, from which chamber it flows into the remaining pair of pipes and through the same into the outlet chamber 6b in the header A, which communicates with the outlet 11. 1t will be seen that the arrangement is such that the steam flows back and forth through the alternate pairs of pipes.

Extending through each of the pipes 24 is a water pipe 25, said pipes 25 being of an exterior diameter less than the interior diameter of the pipes 24, whereby a concentric space for the flowof the steam is provided between each steam pipe and its contained water pipe, as indicated at 26. The endsof said water-conducting pipes extend beyond the ends of the steam pipes 25, across the steam chambers of the headers, and through the partitions or diaphragms 4 and 17, respectively, in 'the headers, so vthat the open ends of said pipes will communicate with the water chambers inthe headers in order that water may circulate from one header to the other and be heated by the steam flowing through the pipes 24 and surrounding the water pipes. The water pipes connecting the chamber 19a with the inletwater chamber 5 and the intermediate water chamber 5a. I preferably. fix at one end to the partition 17 by anysuitable connection, as by threading the end s of said pipes said partition by jam nuts 26 on opposite sides of said partition, while the opposite ends of said pipes slidably project .through openings in the partition 4, suitable packing 27 preventing leakagev at this point. The other pair of water pipes connecting the vchamber 19 with the intermediate water chamber 5a in the header A are secured in place in the same manner as that already described for the other water pipes, but the remaining two pipes connecting-the water outlet chamber 5b with the chamber 19 are connected to the respective headers in a different manner, inorder that they may be employed to control the .valve 10a, as

will now be described. One of the last two tubes-that is, the ones connecting the water outlet chamber 5b with the chamber 19 in the header B, has one end anchored to the endv partition 15 of the vheader B, so as to be rigidly connected to said end wall. This connection preferably consists of a socket Lacasse piece 28 having a threaded socket to receive the threaded end 29of the water pipe, said socket having an opening through thewall of the socket piece, as 'at 30, so that com.

munication is afforded between the end of the water pipe and the chamber 19. The socket piece is provided with a threaded shank 31 and a shoulder 32, said shank extending Y through an opening in the plate 15 and being engaged by a clamping nut .33 for sebetween said pipe and the water outlet chamber. The socket piece is providedwith an extension plunger rod 38 passing slidably through an opening 39 in the end plate 1 of the header A, the space between said extension and the wall of the opening in said plate being packed by any suitable packing 40. The other water pipe connecting the water outlet chamber 5b in the header A.' with` the chamber 19 in the header B has one end connected to the end plate 1 inthe same manner as the end of the other water pipe is connected to the endplate 15 ofthe op! posite header, and is provided with a socket piece located in the chamber'19 and an extension rod projecting outside of said 'chamber in the same manner as described for the rstpipe.

By the arrangement shown -it'will be seen "when the controlling pipes are heated that any expansion resulting from said heating will cause said pipes to movelongitudinally in opposite directions.l Connected to the extension 'member 38, which projects through the wall 15, is a cross bar 41 rigidly connected to the 'outer end ofsaid extension rod by jam nuts 42 on opposite sides of said i cross bar and threaded on said extension rod,

as shown, but it will be understood that any other means may be employed for this pur- 'f pose. Connected tok the opposite ends of said bar 41 are theends of connecting rods 43,-the ends of thelatter opposite to those v connected to the rod 41, being each connected to the'interrnediate portion of a cross bar or plate 44 on each side of the apparatus. The

rods 43 may be guided through suitable openings 45 in the flanges 22 on the shell of the header B. Connected to each cross piece 44, on opposite sides of the rod 43, are rods connectedl to the oppositeends of a cross bar 47.V

'46, the opposite ends of which project beyond the end wall 1 of the header Anand are Lacasse rods 43 longitudinally, carrying the bar 47 I with them. The extension rod 38 connected to the other controlling pipe opening into.,

the water outlet chamber 5", is pivotally connected, as at 49, to one end of a lever 50, the opposite end of which is pivotally connected, as at 51, to the valve stem 52 of the valve 10a for controlling the ow of steam t0 the steam inlet chamber in the header A. The lever is slotted, as at 53, to receive a fulcrum pin 54 mounted in the upper portion of a fulcrum block 55,-which block is mounted for adjustment lengthwise of the bar 47 and the slot 53, said block being provided with a shank 56 extending through a slot 57 extending longitudinally of the bar 47, said block being held in adjusted position by a clamping nut 58 engaging said shank. T preferably provide either the lever 50 or the bar 47 with indications, as shown on the lever 50, to assist in adjusting the ulcrum block at the proper point to cause the valve to' be opened or closed to maintain such a supply of steam to the valve as to result in the desired temperature of the water flowing through the pipes 24.

Tn order to prevent bending of the connecting rods 43, 43, and preserve them in parallelism so that they will pull equally and evenly, T may provide an intermediate brace or guiding member, consisting of a plate 59 clamped to the steam pipes 24 by means of a bolt 60 and clamping plate 6l,

the ends of said plat@J 59 having openingsy 62 through which said'connecting rods 42 extend. y l

The construction being as above described, the operation of the invention may be briefly stated as follows: The water inlet 12 to the chamber 5 is connected with a suitable water supply, or with one end of a circulatory system, and the outlet 13 is connected to a discharge, or to the other-end of the circulatory system, and the steam inlet 10 to the chamber 6, and the valve controlling the same are connected to a suitable source of steam, either alive or exhaust.`

When the water is supplied to the inlet chamber 5 it flows into the rst pair of pipes 25 and through said pipes and out of the opposite ends thereof Vinto the chamber 19a, whence itA iows back through the next pair of water'pipes 25 into the intermediate water chamber 5a in the header A. From this intermediate 4chamber the water flows down the next pair of pipesinto the chamber 19. From the chamber 19 the water Hows through the openings 30 in the socket-pieces 28 into the last palr uof pipes 25, constitutthese pipes and outo socket-pieces 36, into the water outlet chaming the controlling pipes,.and flows through the orifices 37 in the as it Hows through ber 5b, whence it passes outthrough the outlet 13. The steam owing n through the inlet chamber 6 flows down the steam pipes connecting the same with the chamber 20, and out of said chamber by way of the next pair of steam pipes into `the intermediate vsteam chamber 6a in the header A, whence it Hows out through the third pair of steam pipes into the chamber 20a, and then out through the last pair of steam pipes into the steam outlet chamber .6", thus heatingl the Water pipes contained in the steam pipes and the water therein. The steam leaves the chamber 6b through the outlet 11.

Tt will be apparent that as soon as the controlling water pipes connecting the water inlet chamber with the .chamber 19 become heated they will expand lengthwise,

the expansion of Vone pipe taking place solely in one direction, while 'the expansion of the other pipe takes place solely in the opposite direction. This expansion movement moves the rods 43 in one direction, while the rear end of the lever 50 is moved in the oppositel direction, so that the lever 50 will be swung on its fulcrum to regulate the valve to thereby maintain the desired temperature of the water flowing through the heater. By employing the oppositely movable expansion tubes, T am enabled to provide an extremely sensitive controlling mechanism, because the combined expansion of said tubes taking place in opposite directions will result in the valve being operated promptly upon but slightchanges in temperature of the water.

Tt will be understood that the controlling -mechanism is sensitive because the degree of will eect substantial movements 'of Ithe valve stem.

T may, and preferably do, place liltering material, such as mineral wool or other material suitable to the purpose, in the water chamber, or anyof them, to filter the water the heater, as shown in thechambers 5, 5a, and 19a. i

What li claim and desire to secure by Tietters Patent of the United States is:

1. A.' water heater comprising spaced headers, bers, steam pipes connecting a chamber of one header with a chamber of the other each header having separate cham-l header, water pipes extending through said steam pipes and having their opposite ends opening into the other chamber of said headers, a valve controlling the admission of steam into one of said headers whereby the vwater pipes may be subjected to expansion,

a lever for operating the valve, a connection' between said lever and a water pipe whereby the said expansionmay actuate the lever, and means including a second water pipe for multiplying the e'ect of said expansion upon the lever.

2. A water heater comprising spaced' headers each divided by a diaphragm into separate chambers, steam pipes connecting a cham-ber of one header with the corresponding chamber of the other header, water pipes extending through said steam pipes and-said diaphragm, one of said water pipes havingl one end fixed to an'end wall of one header and the opposite end projecting slidably through the end wall of the other header, a second water pipe extending through one of said steam pipes and having one end anchored in the end wall of said other header and projecting through the end wall of the header to which said first-named water pipe is anchored, a valve controlling How to said steam pipes, a lever for operating said valve and having one end connected to the slidable end of one of said water pipes and connections between the slidable end of said other water pipe and said lever, whereby Yrelative movement of said water pipes due to expansion and contraction multiplies the eiiect of each pipe to operate said valve.

8. In a water heater, spaced headers each i separated by a diaphragm into a steam chamber and a water chamber, steam pipes connecting the steam chambers of said headers and fixed to a wall thereof,water pipes extending through said steam pipes, steam chambers and diaphragms, and opening at their ends into said water chambers, means for anchoring the end of one water pipe to the end wall of one header, and the end of another water pipe to an end wall of the other header, the opposite ends of said water pipes carrying thrust rods freely slidable through the end walls of the opposite header from that to which said pipes are anchored, respectively, a valve 'for controlling iow to one of said headers, and means actuated by the relative movement of said water pipes due to expansion and contraction to operate said valve.

Lacasse A4. A water heater comprising spaced headers, each header being sub-divided into steam chambers, steam pipes secured in the walls of said headers and said pipes and chambers alternating in serial connection. for the serial flow of .steam therethrough, each header being further sub-divided into water chambers, Water pipes mounted in the walls of said headers, said water pipes and said water chambers alternating in serial connection `for the serial How of water therethrough, said water pipes extending through the steam chambers and steam pipes Whereby the water is heated, a valve for controlling the flow of Steam through the steam lchambers and pipes, controlling members connected with said valve and subjected to the temperature of the water owing through the water pipes to be expanded or contracted, and means for causing the expansion and contraction of one of said members to be added to the expansion or conthrough, said water pipes extending through the steam chambers and steam pipes whereby the water is heated, a valve for controlling the flow of steam through the steam chambers and pipes, said water pipes being free to expand and some of said water pipes being connected with said valve to eect controlthereof by their expansion or contraction, and means Jfor causing'the expansion or contraction of said pipesto be added whereby to multiply the power and distance of adjustment of said valve.

In testimony whereof l have hereunto signed my name in the presence of two subscribing witnesses.

f j cuantas c. Hassan.

Witnesses M. E. MGNINGH, 5C. G. HEYLMUN. 

